Storm sewer-inlet



W. HUTTON AND W. JORGENSEN.

' STORM SEWER INLET.

APPLICATION FILED MAY 7. I917.

1,31 1,81 9. Patented July 29, 1919.

William Hufion. ammow William dorgensen,

THE iIOLUMIllA ILANOGRAPH c0. WASHINGTON. D. C.

WILLIAM HUTTON' AND WILLIAM J ORGENSEN, F OMAHA, NEBRASKA.

STORM SEWER-INLET.

Specification of Letters Patent. Patented July 29, 1919- Application filed m 7, 1917. Serial No. 167,126.

f-To all whom it may concern:

Be it known that we, WILLIAM HUTTON and WILLIAM JORGENSEN, citizens ofthe United States, and residents of Omaha, in the county of Douglas and State of Nebraska,

1 ,have invented certain new and useful Imthe same on the line 2+2 of Fig. 1, and Fig.

'provem'ents' in Storm Sewer-Inlets, of which the following is a specification.

' ur invention relates to sewer inlets and catch-basins, and it is the object thereof to provide a durable, eflicient and relatively inexpensive structure for storm-sewer inlets,

combining a curb, catch-basin and trap, the

main body of the structure being of reinforced concrete and being formed in suitable molds prior to placing it in the position whereit is used.

In the accompanying drawings Figure 1 is a front view of a structure embodying our invention, Fig. 2 is a transverse section of 3 is an end view thereof.

In the illustrated embodiment of our invention the sewer inlet is designed to be set at the side of a paved street or roadway, in line with the curbing and gutter, and forming in effect a part of the curbing. The structure comprises an upper or mouth-section, and a lower portion or basin, which are formed separatelyin suitable molds and afterward assembled for use. The lower portion or basin is rectangular in horizontal outline, being open at the top and having a flat vertical front wall 4, rear wall 5', short vertical end-walls 8, a horizontal central bottom-portion 6, and inclined bottom-portions 7 adjoining the ends, all of said parts being in an integral or monolithic body of concrete. Metal reinforcing-rods 9 extend continuously through the bottomportions 6. and 7, said rods being bent to conform with the longitudinal bottom-contour of the basin. In the front and rear walls 4 and 5 there are horizontal reinforcing rods 10 and 11, and in the end-walls 8 there are horizontal rods 12, all of which extend longitudinally of the respective walls and are embedded therein intermediate the inner and outer surfaces thereof. Reinforcing cross-rods 13 may be placed in the bottom-portions 7, as indicated by dotted lines in Figs. 1 and 3. Through the central portion of the front wall 4 there is extended horizontally one end of a metal pipe elbow 14 having a belled open end-portion 15 which is turned down wardly inside the basin, fitting between the forwardly to join inner sides of the front and rear walls, and t'ermlnatmg at a level above the bottomportion 6, so as to leave an unobstructed space between the inclined bottom-portions 7 and the trap-opening at the belled end 15.

The upper edge of the described basinmember of the structure lies in a horizontal plane, and the lower edges of the upperor mouth-section fit thereon, said upper section having front, rear and end-walls, 16, 17 and 18, which in the assembled structure form upward extensions of therespective walls 4, 5 and 8 of the basin. Only the lower portion of the rear wall 17 is verticalpand above said lower portion the wall is inclined ledge 19. The front wall 16 tern'linates below said top-ledge, being approximately onehalf the height of the rear wall, so that there is a rectangular opening between thcadjacent edges of said front The upper edge 20 of the wall 16 is sloped toward the inner side thereof, the end-portions of the sloping surface being slightly higher than the interu'lediate portions thereof. The front edge of the top-ledge lies in the same vertical plane as the inner side of the wall 16, so that the upper front portions of the ends 18 are shouldered or offset as shown'in Fig. 3. A plurality of metal bars the rear edge of the top- 1 wall and top-ledge.

21 have their ends embedded in the front and rear walls 16 and 17, the bars extending diagonally upward from the rearupper edge of the front wall, and being equally spaced longitudinally of the inlet passage to form a grating or guard therefor. In the front wall 16 there are embedded longitudinal reinforcing-bars 22, similar bars 23 and 24 'being disposed in the rear wall 17 and topledge 19, while in the ends 18 there are bars 25, as indicated by dotted lines in Figs. 1 and 3.

In erecting or placing the structure in position for use, the same is set with the top-ledge 19 in alinement with the upper portion of the curbing A, as shown in Fig. 1, so that said top-ledge forms a continuation of the curbing, while the sloping surface 20 of the wall 16 is alined with the gutter or portion of the road-surface adjoining the ourbing. Prior to the paving or surfacing of the roadway, the sewer-pipe B is connected with the projecting portion of the elbow 14:, as shown in Fig. 2, and when the paving C is completed the surface thereof is depressed adjolning the sewerinlet to form a bowl-like drainage surface V the sewer.

water-seal for preventing, the

the structure may the curbing of which it is a continuation,

bottom-portions leading to said inlet and merging into the sloping top-surface 20 of the wall 16. In Fig. 1 the dotted linesD indicate approximately the line of juncture between the pav ing surface and the curbing A.

From'the foregoing it will be seen that our invention provides a sewer-inlet combining many desirable features in structures of this kind, some of the more important being as follows: The structure is comparatively inexpensive to construct and install, and has such durability as to be practically permanent. The exposed portion of correspond perfectly with and thus present a uniform and sightly appearance. A large and free opening is pro 'vided for receiving the drainage water from the gutter and surface of the paving,- and the bars 21 forman eifectiveguard for preventing more than superficial entrance of solid matter in masses of The elbow 14: forms a trap or return from the sewer of noxious gases. The sloping V 7 of the basin are flushedby the drainage water and produce a rapid flow of water toward the mouth of the trap, thus tending to prevent the accumulation of sediment either in the basin or trap. It has been found in practice that with sewerinlets constructed as herein described no clogging of the sewer occurs necessitating more extensive cleaning operations than is afforded by flushing the inlet with a large hose inserted between the bars 21 and extended through the inlet passage down into i the basin near the mouth of the trap. The

use of a moderate amount of reinforcing Copies of this patent may be obtained for five cents each, by addressing the such size as to clog danger of breakage Now, having described our invention, what we claim ant Patent is: r I 1. A monolithic combined curb, catch basin and trap provided at its upper portion desire to secure by Letters at the front with a horizontal inlet opening and having its front wall forwardly offset at the lower edge of the inlet opening and its rear wall inclined upwardly and forwardly opposite the-said opening and upwardly, and ing their ends embedded in the offset-front wall'and the inclined rear wall toforma grating. Y

2. A combined curb, catch basin and trap consisting of a monolithic body having its lower portion tapered from theends and its upper portion provided with an inclined rear wall forming a'taper at .rlght angles to the taper of the lower portion, said uprearwardly inclmed bars havper portion being provided all t front t an inlet opening, and an elbow trap member passing through the front wall of the body at the lower portion thereof and having an arm dependingin the'lower tapered portion of the body and inclined rods embedded in the inclined portion of the rear wall and in the upper, portion of the front wall to form a grating. V

Commissioner of IPatents,

Washington, I). 0.

Y WM. HuTToN. 

